203000204123 has 16 divisors (see below), whose sum is σ = 206256230400. Its totient is φ = 199762243200.

The previous prime is 203000204117. The next prime is 203000204153. The reversal of 203000204123 is 321402000302.

It is a cyclic number.

It is not a de Polignac number, because 203000204123 - 2⁸ = 203000203867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203000204153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55721540 + ... + 55725182.

It is an arithmetic number, because the mean of its divisors is an integer number (12891014400).

Almost surely, 2^203000204123 is an apocalyptic number.

203000204123 is a deficient number, since it is larger than the sum of its proper divisors (3256026277).

203000204123 is a wasteful number, since it uses less digits than its factorization.

203000204123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 203000204123 its reverse (321402000302), we get a palindrome (524402204425).

The spelling of 203000204123 in words is "two hundred three billion, two hundred four thousand, one hundred twenty-three".